/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Return the instigator that first caused the package to be requested by the cook. Returns category EInstigator::NotYetRequested if package is not yet known to the cook.
virtual [UE::Cook::FInstigator](API\Runtime\CoreUObject\UObject\FInstigator) GetInstigator ( [FName](API\Runtime\Core\UObject\FName) PackageName )